%%%%%%%%%%%%%%%%%%%%%%
%% start of file `elegantbook.cls'.
%% Copyright 2013-2019 ElegantLaTeX (elegantlatex2e@gmail.com)
%%
%% This work may be distributed and/or modified freely
%% available at https://github.com/ElegantLaTeX/ElegantBook
% %
%% Last Modification 2019-04-12
%%%%%%%%%%%%%%%%%%%%%
% % !Mode:: "TeX:UTF-8"
\NeedsTeXFormat{LaTeX2e}
\ProvidesClass{elegantbook}[2019/04/03 v3.07 ElegantBook document class]

\RequirePackage{kvoptions}
\RequirePackage{etoolbox}
\SetupKeyvalOptions{family=ELEGANT, prefix=ELEGANT@, setkeys=\kvsetkeys}
\newcommand{\ekv}[1]{\kvsetkeys{ELEGANT}{#1}}

% ----- Colors -----
\DeclareStringOption[blue]{color}
\DeclareStringOption[en]{lang}
\DeclareStringOption[answer]{result}
\DeclareStringOption[fancy]{mode}
\DeclareStringOption[show]{base}


% ----- backward compatibility
\DeclareVoidOption{green}{\ekv{color = green}}
\DeclareVoidOption{cyan}{\ekv{color = cyan}}
\DeclareVoidOption{blue}{\ekv{color = blue}}
\DeclareVoidOption{gray}{\ekv{color = gray}}
\DeclareVoidOption{black}{\ekv{color = black}}
\DeclareVoidOption{nocolor}{\ekv{color = none}}

\DeclareVoidOption{en}{\ekv{lang=en}}
\DeclareVoidOption{cn}{\ekv{lang=cn}}

\DeclareVoidOption{fancy}{\ekv{mode=fancy}}
\DeclareVoidOption{simple}{\ekv{mode=simple}}

\DeclareVoidOption{answer}{\ekv{result = answer}}
\DeclareVoidOption{noanswer}{\ekv{result = noanswer}}

\DeclareVoidOption{hide}{\ekv{base = hide}}
\DeclareVoidOption{show}{\ekv{base = show}}

% ----- Math option -----
\newcommand\mailto[1]{\href{mailto:#1}{\nolinkurl{#1}}}

% ----- Title Style -----
\DeclareStringOption[hang]{titlestyle}[hang]
% ----- backward compatibility
\DeclareVoidOption{hang}{\ekv{titlestyle = hang}}
\DeclareVoidOption{display}{\ekv{titlestyle = display}}
% ----- Default Options -----
\DeclareDefaultOption{\PassOptionsToClass{\CurrentOption}{book}}

\ProcessKeyvalOptions*\relax
% \ProcessOptions*\relax
\LoadClass[a4paper,oneside,openany]{book}

\RequirePackage{indentfirst,comment}
\setlength\parindent{2em}

% fontsetting
\RequirePackage{amsmath,mathrsfs,amsfonts,amssymb}
\PassOptionsToPackage{no-math}{fontspec}
\RequirePackage[UTF8, scheme=plain,punct=kaiming]{ctex}

\RequirePackage{ifxetex}

\ifxetex
	\RequirePackage{fontenc}
\else
	\RequirePackage[T1]{fontenc}
\fi

%\RequirePackage{newtxtext}
%\RequirePackage{newtxmath}
%

% font setting for text and math
% \RequirePackage[T1]{fontenc}
% \RequirePackage{newtxtext}
% \RequirePackage{newtxmath}
% \RequirePackage[scale=0.85]{newtxtt}
\RequirePackage{anyfontsize}

%\DeclareSymbolFont{CMletters}     {OML}{cmm} {m}{it}%
%\DeclareSymbolFont{CMsymbols}     {OMS}{cmsy}{m}{n}%
%\DeclareSymbolFont{CMlargesymbols}{OMX}{cmex}{m}{n}%
%
%% \let\sum\relax
%% \DeclareMathSymbol{\sum}{\mathop}{CMlargesymbols}{"50}%
%% \let\int\relax
%% \DeclareMathSymbol{\int}{\mathop}{CMlargesymbols}{"5A}%
%
%\let\intop\relax\let\sumop\relax\let\ointop\relax\let\prodop\relax
%\DeclareMathSymbol{\sumop}{\mathop}{CMlargesymbols}{"50}
%\DeclareMathSymbol{\intop}{\mathop}{CMlargesymbols}{"52}
%\DeclareMathSymbol{\ointop}{\mathop}{CMlargesymbols}{"49}
%\DeclareMathSymbol{\prodop}{\mathop}{CMlargesymbols}{"59}

% \let\partial\relax
% \DeclareMathSymbol{\partial}{\mathord}{CMletters}{"40}%
% \let\in\relax
%\DeclareMathSymbol{\in}{\mathrel}{CMsymbols}{"32}%
% \let\pi\relax
% \DeclareMathSymbol{\pi}{\mathord}{CMletters}{"19}


% ----- Handle Colors -----
%% 章节以及页脚图形

\RequirePackage{xcolor}
\ifdefstring{\ELEGANT@color}{green}{
	\definecolor{structurecolor}{RGB}{0,120,2}%
	\definecolor{main}{RGB}{0,120,2}%
	\definecolor{second}{RGB}{230,90,7}%
	\definecolor{third}{RGB}{0,160,152}%
}{\relax}
\ifdefstring{\ELEGANT@color}{cyan}{
	\definecolor{structurecolor}{RGB}{31,186,190}%
	\definecolor{main}{RGB}{59,180,5}%
	\definecolor{second}{RGB}{175,153,8}%
	\definecolor{third}{RGB}{244,105,102}%
}{\relax}
\ifdefstring{\ELEGANT@color}{blue}{
	\definecolor{structurecolor}{RGB}{60,113,183}
	\definecolor{main}{RGB}{0,166,82}%
	\definecolor{second}{RGB}{255,134,24}%
	\definecolor{third}{RGB}{0,174,247}%
}{\relax}
\ifdefstring{\ELEGANT@color}{gray}{
	\definecolor{structurecolor}{RGB}{0,0,0}
	\definecolor{main}{RGB}{150,150,150}%
	\definecolor{second}{RGB}{150,150,150}%
	\definecolor{third}{RGB}{150,150,150}%
}{\relax}
\ifdefstring{\ELEGANT@color}{black}{
	\definecolor{structurecolor}{RGB}{0,0,0}
	\definecolor{main}{RGB}{0,0,0}%
	\definecolor{second}{RGB}{0,0,0}%
	\definecolor{third}{RGB}{0,0,0}%
}{\relax}

%green color
	\definecolor{structure1}{RGB}{0,120,2}%
	\definecolor{main1}{RGB}{0,120,2}%
	\definecolor{second1}{RGB}{230,90,7}%
	\definecolor{third1}{RGB}{0,160,152}%
%cyan color
	\definecolor{structure2}{RGB}{31,186,190}%
	\definecolor{main2}{RGB}{59,180,5}%
	\definecolor{second2}{RGB}{175,153,8}%
	\definecolor{third2}{RGB}{244,105,102}%
%blue color
	\definecolor{structure3}{RGB}{60,113,183}
	\definecolor{main3}{RGB}{0,166,82}%
	\definecolor{second3}{RGB}{255,134,24}%
	\definecolor{third3}{RGB}{0,174,247}%
% gray color
	\definecolor{structure4}{RGB}{0,0,0}
	\definecolor{main4}{RGB}{150,150,150}%
	\definecolor{second4}{RGB}{150,150,150}%
	\definecolor{third4}{RGB}{150,150,150}%
% black color
	\definecolor{structure5}{RGB}{0,0,0}
	\definecolor{main5}{RGB}{0,0,0}%
	\definecolor{second5}{RGB}{0,0,0}%
	\definecolor{third5}{RGB}{0,0,0}%

% corlor definition
\definecolor{winered}{rgb}{0.5,0,0}
\definecolor{bule}{RGB}{18,29,57}


\newcommand{\base}[2]{%
	\par\nointerlineskip \vspace{0.1\baselineskip}\hspace{\fill}
	{\color{#1}
		\resizebox{0.3\linewidth}{1.5ex}
		{{%
				{\begin{tikzpicture}
					\node  (C) at (0,0) {};
					\node (D) at (4,0) {};
					\path (C) to [ornament=#2] (D);
					\end{tikzpicture}}}}}%
	\hspace{\fill}
	\par\nointerlineskip \vspace{0.1\baselineskip}
}

% ----- Title Style -----
\ifdefstring{\ELEGANT@titlestyle}{hang}{\def\style{hang}}{\relax}
\ifdefstring{\ELEGANT@titlestyle}{display}{\def\style{display}}{\relax}


\newtoks\email
\newtoks\version
\newtoks\institute
\newtoks\subtitle

\usepackage{paralist}

% list/itemize/enumerate setting
\RequirePackage[shortlabels]{enumitem}
\setlist{nolistsep}

% caption settings
\RequirePackage{caption}
\captionsetup{labelfont = bf}
\RequirePackage[font=small,labelfont={bf,color=structurecolor}]{caption}
\captionsetup[table]{skip=3pt}
\captionsetup[figure]{skip=3pt}

%% 常用宏包
\linespread{1.3}
\RequirePackage{graphicx}
%\RequirePackage{enumerate}

\RequirePackage{booktabs}
\RequirePackage{multicol}
\RequirePackage{xcolor}
\RequirePackage{fancyvrb}
\RequirePackage{makecell,lipsum,bxtexlogo,setspace}


%%中文结构名字
\ifdefstring{\ELEGANT@lang}{en}{
\newcommand\figref[1]{\textbf{Figure}~\ref{#1}}
\newcommand\tabref[1]{\textbf{Table}~\ref{#1}}
\renewcommand{\chaptername}{Chapter \thechapter}
}{\relax}
\ifdefstring{\ELEGANT@lang}{cn}{
\renewcommand{\contentsname}{目\hspace{2em}录}
\renewcommand{\figurename}{图}
\renewcommand{\tablename}{表}
\renewcommand{\partname}{第 \thepart\; 部分}
\renewcommand{\listfigurename}{插图目录}
\renewcommand{\listtablename}{表格目录}
\renewcommand{\bibname}{参考文献}
\renewcommand{\appendixname}{附录}
\renewcommand{\indexname}{索\hspace{2em}引}
\newcommand\figref[1]{\textbf{图}~\ref{#1}}
\newcommand\tabref[1]{\textbf{表}~\ref{#1}}
\renewcommand{\chaptername}{第 \thechapter\;章}
}{\relax}



\graphicspath{{./figure/}{./figures/}{./image/}{./images/}{./graphics/}{./graphic/}{./pictures/}{./picture/}}

\RequirePackage{tikz}
\usetikzlibrary{backgrounds,calc,shadows}
\usepackage[object=vectorian]{pgfornament} %%

\newcommand*{\eitemi}{\tikz \draw [baseline, ball color=structurecolor, draw=none] circle (2pt);}
\newcommand*{\eitemii}{\tikz \draw [baseline, fill=structurecolor,draw=none,circular drop shadow] circle (2pt);}
\newcommand*{\eitemiii}{\tikz \draw [baseline, fill=structurecolor,draw=none] circle (2pt);}
\setlist[enumerate,1]{label=\color{structurecolor}\arabic*.,ref=\color{structurecolor}\arabic*}
\setlist[enumerate,2]{label=\color{structurecolor}(\arabic*),leftmargin=0.59cm}
\setlist[enumerate,3]{label=\color{structurecolor}\Roman*.}
\setlist[enumerate,4]{label=\color{structurecolor}\Alph*.}
\setlist[itemize,1]{label={\eitemi}}
\setlist[itemize,2]{label={\eitemii}}
\setlist[itemize,3]{label={\eitemiii}}

% \RequirePackage{natbib}
\RequirePackage{gbt7714}
%\bibliographystyle{gbt7714-numerical}
\setlength{\bibsep}{0.0pt}
\def\bibfont{\footnotesize}


%% device settings

\RequirePackage{geometry}
\geometry{
	a4paper,
%	left=27mm,  %% or inner=23mm
%	right=27mm, %% or outer=18mm
	top=25.4mm, bottom=25.4mm,
	headheight=2.17cm,
	headsep=4mm,
	footskip=12mm
}

\RequirePackage{imakeidx}
\makeindex[
  title = {名词索引},
  intoc = true,
  columns = 2,
  columnsep = 1cm,
  columnseprule = true,
  program = makeindex,
  options = {-s mkind.ist},
  noautomatic = false
]
\indexsetup{
  toclevel = chapter,
  headers = {名词索引}{名词索引},
  othercode = {
    \renewcommand{\indexspace}{\smallskip}
  }
}

\RequirePackage{hyperref}
\hypersetup{
	breaklinks,
	unicode,
	linktoc=all,
	bookmarksnumbered=true,
	bookmarksopen=true,
	pdfkeywords={ElegantBook},
	colorlinks,
	linkcolor=winered,
	citecolor=winered,
	urlcolor  = winered,
	plainpages=false,
	pdfstartview=FitH,
	pdfborder={0 0 0},
	linktocpage
}
\let\email\relax
\newcommand\email[1]{\href{mailto:#1}{\nolinkurl{#1}}}

%%   章节设置
\RequirePackage[center,pagestyles]{titlesec}
\RequirePackage{apptools}
\RequirePackage[toc,page]{appendix}

\setcounter{secnumdepth}{5}
\renewcommand{\thesubsubsection}{\zhnumber{\arabic{subsubsection}}}

\titleformat{\chapter}[\style]{\bfseries}
{\filcenter\LARGE\enspace\bfseries{\color{structurecolor}\IfAppendix{\appendixname}{\chaptername}\enspace}}{1pt}{\bfseries\color{structurecolor}\LARGE\filcenter}[\ifdefstring{\ELEGANT@base}{hide}{}{\filcenter\base{structurecolor}{88}}]

\titleformat{\section}[hang]{\bfseries}
{\hspace{-2.45em}\Large\bfseries{\color{structurecolor}\thesection}\enspace}{1pt}{\color{structurecolor}\Large\bfseries\filright}

\titleformat{\subsection}[hang]{\bfseries}
{\hspace{-2.45em}\large\bfseries\color{structurecolor}\thesubsection\enspace}{1pt}{\color{structurecolor}\large\bfseries\filright}

\titleformat{\subsubsection}[hang]{\bfseries}
{\hspace{2em}\bfseries\color{structurecolor}\thesubsubsection、\enspace}{0pt}{\color{structurecolor}\bfseries\filright}


\titlespacing{\chapter}{0pt}{-20pt}{1.3\baselineskip}
\titlespacing{\subsubsection}{0pt}{0.5\baselineskip}{0.5\baselineskip}
%\titlespacing{\subsection}{0pt}{0.5\baselineskip}{-\baselineskip}



%%define the note and proof environment
\RequirePackage{pifont,manfnt,bbding}
% list/itemize/enumerate setting
\RequirePackage[shortlabels]{enumitem}
\setlist{nolistsep}


\RequirePackage[many]{tcolorbox}
\ifdefstring{\ELEGANT@mode}{fancy}{
\tcbset{
    common/.style={
        %fontupper=\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\upshape\kaishu},
        lower separated=false,
        coltitle=white,
        colback=gray!5,
        boxrule=0.5pt,
        fonttitle=\bfseries,
        enhanced,
        breakable,
        top=8pt,
        before skip=8pt,
        attach boxed title to top left={yshift=-0.11in,xshift=0.15in},
        boxed title style={boxrule=0pt,colframe=white,arc=0pt,outer arc=0pt},
        separator sign={.},
    },
    defstyle/.style={
        common,
        colframe=main,
        colback=main!5,
        colbacktitle=main,
        overlay unbroken and last={\node[anchor=south east, outer sep=6pt] at (\textwidth-width,0) {\textcolor{main}{$\clubsuit$}}; }
    },
    thmstyle/.style={
        common,
        colframe=second,
        colback=second!5,
        colbacktitle=second,
        overlay unbroken and last={\node[anchor=south east, outer sep=6pt] at (\textwidth-width,0) {\textcolor{second}{$\heartsuit$}}; }
    },
    propstyle/.style={
        common,
        colframe=third,
        colback=third!5,
        colbacktitle=third,
        overlay unbroken and last={\node[anchor=south east, outer sep=6pt] at (\textwidth-width,0) {\textcolor{third}{$\spadesuit$}}; }
    },
}

\newtcbtheorem[auto counter,number within=section]{definition}{
	\ifdefstring{\ELEGANT@lang}{en}{Definition}{定义}
}{defstyle}{def}

\newtcbtheorem[auto counter,number within=section]{theorem}{
	\ifdefstring{\ELEGANT@lang}{en}{Theorem}{定理}
}{thmstyle}{thm}

\newtcbtheorem[auto counter,number within=section]{proposition}{
	\ifdefstring{\ELEGANT@lang}{en}{Proposition}{命题}
}{propstyle}{pro}

\newtcbtheorem[auto counter,number within=section]{corollary}{
	\ifdefstring{\ELEGANT@lang}{en}{Corollary}{推论}
}{thmstyle}{cor}

\newtcbtheorem[auto counter,number within=section]{lemma}{
	\ifdefstring{\ELEGANT@lang}{en}{Lemma}{引理}
}{thmstyle}{lem}

}{\relax}

\ifdefstring{\ELEGANT@mode}{simple}{
\let\openbox\relax
\RequirePackage{amsthm}
\let\proof\relax
\let\endproof\relax
% declare a new theorem style
\newtheoremstyle{edefstyle}%
{3pt}% Space above
{3pt}% Space below
{\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\upshape\kaishu}}% Body font
{}% Indent amount
{\bfseries\color{main}}% Theorem head font
{.}% Punctuation after theorem head
{.5em}% Space after theorem head
{\thmname{#1}\thmnumber{ #2}\thmnote{ (#3)}}% Theorem head spec (can be left empty, meaning ‘normal’)
% -------------------------------------------------%
\newtheoremstyle{ethmstyle}%
{3pt}% Space above
{3pt}% Space below
{\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\upshape\kaishu}}% Body font
{}% Indent amount
{\bfseries\color{second}}% Theorem head font
{.}% Punctuation after theorem head
{.5em}% Space after theorem head
{\thmname{#1}\thmnumber{ #2}\thmnote{ (#3)}}% Theorem head spec (can be left empty, meaning ‘normal’)
% -------------------------------------------------%
\newtheoremstyle{eprostyle}%
{3pt}% Space above
{3pt}% Space below
{\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\upshape\kaishu}}% Body font
{}% Indent amount
{\bfseries\color{third}}% Theorem head font
{.}% Punctuation after theorem head
{.5em}% Space after theorem head
{\thmname{#1}\thmnumber{ #2}\thmnote{ (#3)}}% Theorem head spec (can be left empty, meaning ‘normal’)

\theoremstyle{edefstyle}
\newtheorem{edefinition}{\ifdefstring{\ELEGANT@lang}{en}{Definition}{定义}}[section]

\theoremstyle{ethmstyle}
\newtheorem{etheorem}{\ifdefstring{\ELEGANT@lang}{en}{Theorem}{定理}}[section]
\newtheorem{elemma}{\ifdefstring{\ELEGANT@lang}{en}{Lemma}{引理}}[section]
\newtheorem{ecorollary}{\ifdefstring{\ELEGANT@lang}{en}{Corollary}{推论}}[section]

\theoremstyle{eprostyle}
\newtheorem{eproposition}{\ifdefstring{\ELEGANT@lang}{en}{Proposition}{命题}}[section]

\newenvironment{theorem}[2]
  {\ifstrempty{#1}{\etheorem}{\etheorem[#1]}\ifstrempty{#2}{}{\label{thm:#2}}}
  {\endetheorem}

\newenvironment{definition}[2]
  {\ifstrempty{#1}{\edefinition}{\edefinition[#1]}\ifstrempty{#2}{}{\label{def:#2}}}
  {\endedefinition}

\newenvironment{lemma}[2]
  {\ifstrempty{#1}{\elemma}{\elemma[#1]}\ifstrempty{#2}{}{\label{lem:#2}}}
  {\endelemma}

\newenvironment{corollary}[2]
  {\ifstrempty{#1}{\ecorollary}{\ecorollary[#1]}\ifstrempty{#2}{}{\label{cor:#2}}}
  {\endecorollary}

\newenvironment{proposition}[2]
  {\ifstrempty{#1}{\eproposition}{\eproposition[#1]}\ifstrempty{#2}{}{\label{pro:#2}}}
  {\endeproposition}
}{\relax}

% main（green-def): example exercise problem solution
% second（orange-thm）: proof note remark
% third（blue-prop):  assumptions property conclusion custom

%% Example with counter
\newcounter{exam}[section]
\setcounter{exam}{0}
\renewcommand{\theexam}{\thesection.\arabic{exam}}
\newenvironment{example}[1][]{
 		\refstepcounter{exam}\par\noindent\kern-0.2em\textbf{\color{main}{
 			\ifdefstring{\ELEGANT@lang}{en}{Example}{例}
 		}~\theexam #1: }\rmfamily %
 	}{
 		\par\ignorespacesafterend %
 	}

%% Exercise with counter
\newcounter{exer}[section]
\setcounter{exer}{0}
\renewcommand{\theexer}{\thesection.\arabic{exer}}
\newenvironment{exercise}[1][]{
 		\refstepcounter{exer}\par\noindent\makebox[-3pt][r]{\scriptsize\color{red!90}\HandPencilLeft\quad}\textbf{\color{main}{
 			\ifdefstring{\ELEGANT@lang}{en}{Exercise}{练习}
 		}~\theexer #1: }\rmfamily %
 	}{
 		\par\medskip\ignorespacesafterend %
 	}

%% Exercise with counter
\newcounter{prob}[section]
\setcounter{prob}{0}
\renewcommand{\theprob}{\thesection.\arabic{prob}}
\newenvironment{problem}[1][]{
 		\refstepcounter{prob}\par\noindent\textbf{\color{main}{%
 			\ifdefstring{\ELEGANT@lang}{en}{Problem}{例题}
 		}~\theprob #1: }\rmfamily %
 	}{
 		\par\medskip\ignorespacesafterend %
 	}



\newenvironment{note}{\par\noindent{\makebox[0pt][r]{\scriptsize\color{red!90}\textdbend\quad}\textbf{\color{second}
	\ifdefstring{\ELEGANT@lang}{en}{Note:}{注意：}
}}\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\kaishu}}{\par}

\newenvironment{proof}{\par\noindent\textbf{\color{second}
	\ifdefstring{\ELEGANT@lang}{en}{Proof:}{证明：}
}\color{black!90}\small}{
%\hfill$\Box$\quad
\par}
\newenvironment{remark}{\noindent\textbf{\color{second}
	\ifdefstring{\ELEGANT@lang}{en}{Remark:}{注：}
}}{\par}
\newenvironment{assumption}{\par\noindent\textbf{\color{third}
	\ifdefstring{\ELEGANT@lang}{en}{Assumption:}{假设：}
}}{\par}
\newenvironment{conclusion}{\par\noindent\textbf{\color{third}
	\ifdefstring{\ELEGANT@lang}{en}{Conclusion:}{结论：}
}}{\par}
\newenvironment{solution}{\par\noindent\textbf{\color{main}
	\ifdefstring{\ELEGANT@lang}{en}{Solution:}{解：}
}}{\par}
\newcounter{prop}[section]

\newenvironment{property}{\par\noindent\kern-0.2em\textbf{\color{third}\refstepcounter{prop}
	\ifdefstring{\ELEGANT@lang}{en}{Property:}{性质\thesection.\theprop：}
}}{\par}
\newenvironment{custom}[1]{\par\noindent\textbf{\color{third}
	\ifdefstring{\ELEGANT@lang}{en}{#1:}{#1：}
}}{\par}

\ifdefstring{\ELEGANT@result}{noanswer}{
	\AtBeginDocument{
	\excludecomment{solution}
	\excludecomment{proof}
	\excludecomment{inline}
	}
}{\relax}


%页眉页脚
\RequirePackage{fancyhdr}
\RequirePackage{lastpage}
\fancyhf{}

\if@twoside
\fancyhead[EL,OR]{\color{structurecolor}\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\kaishu}--\thepage/\pageref*{LastPage}--}
\fancyhead[ER]{\color{structurecolor}\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\kaishu}\leftmark{}}
\fancyhead[OL]{\color{structurecolor}\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\kaishu}\rightmark}
\else
\fancyhead[R]{\color{structurecolor}\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\kaishu}--\thepage/\pageref*{LastPage}--}
\fancyhead[L]{\color{structurecolor}\ifdefstring{\ELEGANT@lang}{en}{\itshape}{\kaishu}\rightmark}
\fi

\fancyfoot[c]{\base{structurecolor}{88}}
\renewcommand{\headrule}{\color{structurecolor}\hrule width\textwidth}
\pagestyle{fancy}
\renewcommand{\headrulewidth}{1pt}
% \renewcommand{\headrule}{}
\fancypagestyle{plain}{\renewcommand{\headrulewidth}{0pt}\fancyhf{}\renewcommand{\headrule}{}}
\renewcommand{\sectionmark}[1]{\markright{\thesection\; #1}{} }
\renewcommand{\chaptermark}[1]{\markboth{\chaptername \; #1\;}{}}

%%封面
\newcommand*{\equote}[1]{\def\@equote{#1}}

\def\IfEmpty#1{%
  \edef\1{\the#1}
  \ifx\1\empty
}
\def \ifempty#1{\def\temp{#1} \ifx\temp\empty }

\newcommand*{\logo}[1]{
 \def\@logo{\includegraphics[width=4.2cm]{#1}
 }
}
\newcommand*{\cover}[1]{
 \def\@cover{\includegraphics[width=\linewidth]{#1}
 }
}


\renewcommand{\baselinestretch}{1.35}

\renewcommand*{\maketitle}{%
\hypersetup{pageanchor=false}
\begin{titlepage}
	\newgeometry{margin = 0in}
	\parindent=0pt
	\@cover
	\setlength{\fboxsep}{0pt}
	\colorbox{second}{\makebox[\linewidth][c]{\shortstack[c]{\vspace{0.5in}}}}
	\vfill
	\vskip-2ex
	\hspace{2em}
	\parbox{0.8\textwidth}{
		\bfseries\Huge \@title\par
	}
	\vfill
	\vspace{-1.0cm}
	\setstretch{2.5}
	\hspace{2.5em}
	\begin{minipage}[c]{0.68\linewidth}
		{\color{darkgray}\bfseries\Large \the\subtitle\\[2ex]}
		\color{gray}\kaishu\normalsize
		{\renewcommand{\arraystretch}{0.618}
		\begin{tabular}{l}
			\ifdefstring{\ELEGANT@lang}{en}{\textbf{Author: }}{\textbf{作者：}} \@author \\
			\ifdefstring{\ELEGANT@lang}{en}{\textbf{Institute: }}{\textbf{组织：}} \the\institute\\
			\ifdefstring{\ELEGANT@lang}{en}{\textbf{Date: }}{\textbf{时间：}} \@date\\
			\ifdefstring{\ELEGANT@lang}{en}{\textbf{Version: }}{\textbf{版本：}} \the\version\\
		\end{tabular}}
	\end{minipage}
	\begin{minipage}[c]{0.27\linewidth}
	\begin{tikzpicture}[remember picture,overlay]
		\begin{pgfonlayer}{background}
		  \node[opacity=0.8,anchor=south east,outer sep=0pt,inner sep=0pt] at ($(current page.south east) +(-0.8in,1.5in)$) {\@logo};
		\end{pgfonlayer}
	\end{tikzpicture}
	\end{minipage}
	\vfill
	\centerline{\itshape \@equote}
	\vfill
\end{titlepage}
\restoregeometry
\thispagestyle{empty}
}




\RequirePackage{listings}
\renewcommand{\ttdefault}{cmtt}
\lstdefinestyle{mystyle}{
  basicstyle=%
    \ttfamily
    \lst@ifdisplaystyle\small\fi
}

\lstset{basicstyle=\ttfamily,style=mystyle}

\definecolor{lightgrey}{rgb}{0.9,0.9,0.9}
\definecolor{frenchplum}{RGB}{190,20,83}
\lstset{language=[LaTeX]TeX,
	texcsstyle=*\color{winered},
	numbers=none,
	breaklines=true,
	keywordstyle=\color{winered},
	commentstyle=\color{gray},
	emph={elegantpaper,fontenc,fontspec,xeCJK,FiraMono,xunicode,newtxmath,figure,fig,image,img,table,itemize,enumerate,newtxtext,newtxtt,ctex,microtype,description,times,newtx,booktabs,tabular,PDFLaTeX,XeLaTeX,type1cm,BibTeX,device,color,mode,lang,amsthm,tcolorbox,titlestyle},
	emphstyle={\color{frenchplum}},
	morekeywords={DeclareSymbolFont,SetSymbolFont,toprule,midrule,bottomrule,institute,version,includegraphics,setmainfont,setsansfont,setmonofont ,setCJKmainfont,setCJKsansfont,setCJKmonofont,RequirePackage,figref,tabref,email,maketitle,keywords,definecolor,equote,logo,cover,subtitle,appendix,chapter,hypersetup,mainmatter,tableofcontents},
	frame=single,
	tabsize=2,
	rulecolor=\color{structurecolor},
	framerule=0.2pt,
	columns=flexible,
	% backgroundcolor=\color{lightgrey}
}



